What Are Your Moves Tomorrow, September 11, 2026

{"summary": "Commenter flags large negative gamma exposure (GEX) on SPY puts at $750 and $730 strikes for 9/18 expiry, suggesting downside pressure into next Friday.", "reason": "The author provides a technical rationale (negative GEX/dealer hedging) for a bearish outlook on SPY.", "ideas": [{"symbol": "SPY", "direction": "short", "thesis": "The author notes the largest negative GEX on SPY sits at the $750 strike for 9/18 expiry with over 200,000 put contracts, followed by $730 with over 125,000 puts. Negative dealer gamma at these levels implies hedging flows that can amplify downside moves, making the setup look bearish into next Friday's opex. The stated catalyst is the 9/18 options expiration; the main risk is that dealer positioning can flip or be absorbed without a move.", "thesis_short": "Large negative GEX at SPY 750/730 puts, bearish", "quote": "Large negative gex on spy at $750 for 9/18 with over 200,000 put contracts. Its the largest at this opex. Next is $730 9/18 negative gex with over 125,000 put contracts. Looking nasty now till next friday.", "confidence": 0.7, "sentiment": -0.6, "timeframe": "until next Friday (9/18 opex)"}], "model": "gemini-3.1-flash-lite", "verified": true, "extraction_model": "deepseek-flash"}